公开(公告)号：US20250084302A1

公开(公告)日：2025-03-13

申请号：US18814801

申请日：2024-08-26

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Miyako MORIKUBO ,  Yuki HAYASHI ,  Tsunenori SUZUKI ,  Takashi SHINGU ,  Sachiko KAWAKAMI ,  Harue OSAKA ,  Satoshi SEO

IPC: C09K11/06 ,  C07D209/86 ,  H10K50/858

Abstract: An organic compound is represented by General Formula (G1). In the formula, each of R1 to R4 independently represents any of hydrogen (including deuterium), a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 6 carbon atoms, a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 carbon atoms, and a substituent represented by General Formula (G1-1). Each of R5 to R8 independently represents any of hydrogen (including deuterium), a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 6 carbon atoms, a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 carbon atoms, and a substituent represented by General Formula (G1-3). At least one of R5 to R8 represents a substituent represented by General Formula (G1-3).

公开(公告)号：US20240292648A1

公开(公告)日：2024-08-29

申请号：US18645743

申请日：2024-04-25

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Satoshi SEO ,  Hiromi SEO ,  Kunihiko SUZUKI ,  Kanta ABE ,  Yuji IWAKI ,  Naoaki HASHIMOTO ,  Tsunenori SUZUKI

IPC: H10K50/16 ,  H10K50/11 ,  H10K50/15 ,  H10K50/17 ,  H10K50/81 ,  H10K50/82 ,  H10K59/00 ,  H10K85/30 ,  H10K101/40

CPC classification number: H10K50/16 ,  H10K50/11 ,  H10K50/15 ,  H10K50/171 ,  H10K50/81 ,  H10K50/82 ,  H10K59/00 ,  H10K85/321 ,  H10K2101/40

Abstract: A novel light-emitting device is provided. A light-emitting device with high emission efficiency is provided. A light-emitting device with a long lifetime is provided. A light-emitting device with low driving voltage is provided. The light-emitting device includes an anode, a cathode, and an EL layer between the anode and the cathode. The EL layer includes a hole-injection layer, a light-emitting layer, and an electron-transport layer. The hole-injection layer is positioned between the anode and the light-emitting layer. The electron-transport layer is positioned between the light-emitting layer and the cathode. The hole-injection layer contains a first substance and a second substance. The first substance is an organic compound which has a hole-transport property and a HOMO level higher than or equal to −5.7 eV and lower than or equal to −5.4 eV. The second substance exhibits an electron-accepting property with respect to the first substance. The electron-transport layer contains a material whose resistance decreases with current flowing therethrough.

公开(公告)号：US20240244732A1

公开(公告)日：2024-07-18

申请号：US18289069

申请日：2022-05-11

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Takashi SHINGU ,  Tsunenori SUZUKI ,  Satoshi SEO ,  Haruki KATAGIRI ,  Noboru INOUE ,  Kazuhiko FUJITA ,  Toshiki SASAKI ,  Hideko YOSHIZUMI

IPC: H05B47/165 ,  F21V1/14 ,  F21Y115/15

CPC classification number: H05B47/165 ,  F21V1/146 ,  F21Y2115/15

Abstract: Provided is a novel light adjustment program that can make a human feel at ease. Provided is the light adjustment program that includes the steps of obtaining basic data having 1/f fluctuation characteristics; generating first smoothed data and second smoothed data by performing moving average processing with different periods on the basic data having 1/f fluctuation characteristics; generating light adjustment data by subjecting the first smoothed data and the second smoothed data to arithmetic processing; and changing luminance of a light-emitting device in time series in accordance with the light adjustment data.

公开(公告)号：US20230301178A1

公开(公告)日：2023-09-21

申请号：US18200370

申请日：2023-05-22

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Harue Osaka ,  Takahiro USHIKUBO ,  Nobuharu OHSAWA ,  Satoshi SEO ,  Tsunenori SUZUKI

IPC: H10K85/60 ,  C07C211/54 ,  C09K11/06 ,  H05B33/14 ,  H10K85/30 ,  C09K11/02

CPC classification number: H10K85/633 ,  C07C211/54 ,  C09K11/06 ,  H05B33/14 ,  H10K85/626 ,  H10K85/631 ,  H10K85/342 ,  H10K85/636 ,  C09K11/025 ,  H10K50/14

Abstract: A triarylamine derivative represented by a general formula (G1) given below is provided. Note that in the formula, Ar represents either a substituted or unsubstituted phenyl group or a substituted or unsubstituted biphenyl group; α represents a substituted or unsubstituted naphthyl group; β represents either hydrogen or a substituted or unsubstituted naphthyl group; n and m each independently represent 1 or 2; and R1 to R8 each independently represent any of hydrogen, an alkyl group having 1 to 6 carbon atoms, or a phenyl group.

公开(公告)号：US20230180495A1

公开(公告)日：2023-06-08

申请号：US18102914

申请日：2023-01-30

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Satoshi SEO ,  Tsunenori SUZUKI ,  Yusuke TAKITA ,  Naoaki HASHIMOTO

IPC: H10K50/11 ,  C07D209/82 ,  H10K71/00 ,  H10K71/16 ,  H10K85/60

CPC classification number: H10K50/11 ,  C07D209/82 ,  H10K71/00 ,  H10K71/16 ,  H10K85/615 ,  H10K85/626 ,  H10K85/631 ,  H10K85/633 ,  H10K85/6572 ,  H10K85/6576 ,  H10K50/15 ,  H10K50/16 ,  H10K50/17 ,  H10K50/156 ,  H10K50/166 ,  H10K2101/10 ,  H10K2101/30

Abstract: A novel light-emitting element is provided. A light-emitting element with a long lifetime is provided. A light-emitting element with high emission efficiency is provided. In the light-emitting element, an EL layer includes a hole-injection layer, a first hole-transport layer, a second hole-transport layer, a third hole-transport layer, a light-emitting layer, a first electron-transport layer, and a second electron-transport layer in this order; the hole-injection layer includes an organic acceptor; the LUMO level of the host material is higher than that of the first electron-transport layer; the LUMO level of the second electron-transport layer is higher than that of the first electron-transport layer; the host material is a substance including a condensed aromatic ring skeleton; and the first and second electron-transport layers each include a substance having a heteroaromatic ring skeleton.

公开(公告)号：US20230124044A1

公开(公告)日：2023-04-20

申请号：US17819433

申请日：2022-08-12

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Tsunenori SUZUKI ,  Sachiko KAWAKAMI ,  Naoaki HASHIMOTO ,  Satoshi SEO

IPC: H01L51/00

Abstract: A light-emitting device with high emission efficiency is provided. The light-emitting device includes at least a light-emitting layer between an anode and a cathode. The light-emitting layer contains a light-emitting substance, a first organic compound, and a second organic compound. The light-emitting substance is a substance that emits fluorescent light. The first organic compound has any one of an anthracene skeleton, a tetracene skeleton, a phenanthrene skeleton, a pyrene skeleton, a chrysene skeleton, a carbazole skeleton, a benzocarbazole skeleton, a dibenzocarbazole skeleton, a dibenzofuran skeleton, a benzonaphthofuran skeleton, a bisnaphthofuran skeleton, a dibenzothiophene skeleton, a benzonaphthothiophene skeleton, a bisnaphthothiophene skeleton, and a fluoranthene skeleton. The second organic compound has any one of a fluorenylamine skeleton, a spirobifluorenylamine skeleton, a dibenzofuranylamine skeleton, a carbazolamine skeleton, a benzocarbazolamine skeleton, a dibenzocarbazolamine skeleton, a dibenzofuranamine skeleton, a benzonaphthofuranamine skeleton, a bisnaphthofuranamine skeleton, a dibenzothiophenamine skeleton, a benzonaphthothiopheneamine skeleton, a bisnaphthothiopheneamine skeleton, and an arylamine skeleton.

公开(公告)号：US20220123231A1

公开(公告)日：2022-04-21

申请号：US17500114

申请日：2021-10-13

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hiroshi KADOMA ,  Satoshi SEO ,  Harue OSAKA ,  Tsunenori SUZUKI

IPC: H01L51/00 ,  C07D209/80 ,  C09K11/06 ,  C07D209/86

Abstract: A novel light-emitting device that is highly convenient, useful, or reliable is provided. An organic compound in which a substituted or unsubstituted naphtho[2,3-c]carbazolyl group or a substituted or unsubstituted benzo[c]naphtho[2,3-g]carbazolyl group is bonded to a substituted or unsubstituted 9H-carbazolyl group or a substituted or unsubstituted anthryl group through a substituted or unsubstituted arylene group. The arylene group has 6 to 13, inclusive, carbon atoms.

公开(公告)号：US20210193930A1

公开(公告)日：2021-06-24

申请号：US17116222

申请日：2020-12-09

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Kyoko TAKEDA ,  Harue OSAKA ,  Hiroshi KADOMA ,  Satoshi SEO ,  Tsunenori SUZUKI ,  Naoaki HASHIMOTO

IPC: H01L51/00 ,  C07D493/04 ,  C09K11/06 ,  C07D209/88 ,  C07D405/12

Abstract: A novel organic compound represented by General Formula (G1) is provided. In General Formula (G1), X1 and X2 each independently represent a secondary or tertiary alkyl group having 3 to 6 carbon atoms and having a branched carbon atom which is bonded to a phenyl group. In addition, Ar1 represents a substituted or unsubstituted condensed aromatic ring skeleton having 10 to 60 carbon atoms and composed of two or more rings or a substituted or unsubstituted condensed heteroaromatic ring skeleton having 8 to 60 carbon atoms and composed of two or more rings. Furthermore, Ar2 represents a substituted or unsubstituted aryl group having 6 to 25 carbon atoms. Moreover, n represents any of 1 to 3, and in the case where n is 2 or more, two or more groups bonded to Ar1 may be identical or different.

公开(公告)号：US20210139496A1

公开(公告)日：2021-05-13

申请号：US16612019

申请日：2018-05-11

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Kyoko TAKEDA ,  Harue OSAKA ,  Satoshi SEO ,  Tsunenori SUZUKI ,  Naoaki HASHIMOTO ,  Yusuke TAKITA

IPC: C07D495/04 ,  C07D405/04 ,  C07D405/14 ,  C07D409/04 ,  C07D409/14 ,  C07D493/04 ,  H01L51/00

Abstract: A novel organic compound is provided. An organic compound that emits light with excellent chromaticity is provided. An organic compound in which one or two groups represented by the following general formula (g1) are bonded to any one of a naphthobisbenzofuran skeleton, a naphthobisbenzothiophene skeleton, and a naphthobenzofuranobenzothiophene skeleton is provided.

公开(公告)号：US20190088897A1

公开(公告)日：2019-03-21

申请号：US16183838

申请日：2018-11-08

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Satoshi SEO ,  Tsunenori SUZUKI ,  Satoko SHITAGAKI

IPC: H01L51/50 ,  H01L51/00

Abstract: Objects of the present invention are to provide: a light-emitting element having a long lifetime and good emission efficiency and drive voltage. One embodiment of the invention is a light-emitting element including, between an anode and a cathode, at least a stack structure in which a first layer, a second layer, and a light-emitting layer are provided in order from the anode side. The first layer includes a first organic compound and an electron-accepting compound. The second layer includes a second organic compound having a HOMO level differing from the HOMO level of the first organic compound by from −0.2 eV to +0.2 eV. The light-emitting layer includes a third organic compound having a HOMO level differing from the HOMO level of the second organic compound by from −0.2 eV to +0.2 eV and a light-emitting substance having a hole-trapping property with respect to the third organic compound.